Cross-section of the Earth (left) and the exoplanet Kepler-138 d (right). Like the Earth, this exoplanet has an interior composed of metals and rocks (brown portion), but Kepler-138 d also has a ...

IceCube has measured the absorption of atmospheric and astrophysical neutrinos in the Earth, and found that the interaction cross-section of multi-TeV neutrinos is within 50 per cent of the ...

Cross-sections of Earth's mantle down to 1,400 km depth showing changes in its flow as ancient ocean beds fall into Earth's deep interior. Credit. Ana Ferreira, UCL. Usage Restrictions.